Patent DE-102009016475-A1 (DE)
Title: Hydrogen supply system comprises hydrogen reservoir arrangement with hydrogen reservoir and return device for hydrogen, mobile unit with metal hydride hydrogen storage, coupling device, and pressure- and temperature measuring device
Inventor: JOPPICH FARIDA
IPC: C01B3/00
Filed: 2009-03-30
Abstract: The hydrogen supply system (10) comprises a hydrogen reservoir arrangement (12) with a hydrogen reservoir (16) and a return device (38) for hydrogen, a mobile unit (14) with a metal hydride hydrogen storage (50), which has a hydrogen inlet arrangement with an inlet and a hydrogen outlet arrangement with an outlet, where the inlet and the outlet are spatially arranged at the metal hydride hydrogen storage in a separate manner to allow a flow-through of the metal hydride hydrogen storage, and a coupling device for coupling the mobile unit to the hydrogen reservoir arrangement. The hydrogen supply system (10) comprises a hydrogen reservoir arrangement (12) with a hydrogen reservoir (16) and a return device (38) for hydrogen, a mobile unit (14) with a metal hydride hydrogen storage (50), which has a hydrogen inlet arrangement with an inlet and a hydrogen outlet arrangement with an outlet, where the inlet and the outlet are spatially arranged at the metal hydride hydrogen storage in a separate manner to allow a flow-through of the metal hydride hydrogen storage, a coupling device for coupling the mobile unit to the hydrogen reservoir arrangement for filling the metal hydride hydrogen storage with hydrogen, where fluid-effective connections between the hydrogen reservoir and the inlet of the hydrogen inlet arrangement and between the return device and the outlet of the hydrogen outlet arrangement are producible and separatable by using the coupling device to supply a hydrogen stream from the hydrogen reservoir to the metal hydride hydrogen storage, to use one part of the hydrogen stream in the metal hydride hydrogen storage for storing hydrogen, to carry out other part of the hydrogen stream for cooling through the metal hydride hydrogen storage and to fed back to the return device, a device for measuring hydrogen pressure in a hydrogen-supplying pipe, a device for measuring hydrogen temperature in the hydrogen-supplying pipe, an interrupting device for regulating and/or controlling the hydrogen stream in the hydrogen-supplying pipe, a device for measuring hydrogen flow through the hydrogen-supplying pipe, a device for transferring heat from a driving unit to the metal hydride hydrogen storage, a device for compressing hydrogen supplied in the pipe, a container for collecting hydrogen fed back to the return device, and a cooling device, which is disposed at the hydrogen reservoir arrangement and by which a cooling medium different from the hydrogen is supplyable to the metal hydride hydrogen storage in a coupled state of the mobile unit. The return device is in fluid-effective connection, which is producible and separatable using the interrupting device, with the hydrogen reservoir. The mobile unit has the heat transfer device, which is in heat-effective connection with the metal hydride hydrogen storage, and the driving unit, which is in heat-effective connection with the heat transfer device. The driving unit comprises a fuel cell device. The heat transfer device comprises a pump for driving heat transfer fluid guided into the heat transfer device. The metal hydride hydrogen storage comprises a heat-conducting additional element for additionally supplying heat to the metal hydride hydrogen storage and/or for additionally discharging heat from the metal hydride hydrogen storage, an internal flow guide for guiding hydrogen, and an internal space filled with metal hydride-forming material, where the internal space is flow-throughable with the hydrogen against the gravitational direction for filling the metal hydride hydrogen storage with the hydrogen, so that the metal hydride-forming material disposed in the internal space of the hydrogen storage is bringable in a relaxation state, and has a trapezoidal cross-section obtained in a vertical direction. Independent claims are included for: (1) metal hydride hydrogen storage; and (2) a method for supplying hydrogen to a mobile unit.